Gaya APA
Wigbout, F., Widyamartaya, A.
(1992,2004,2006).
Kreatif Berwicara
.
Yogyakarta:
Kanisius.
Gaya MLA
Wigbout, F.., Widyamartaya, A..
"Kreatif Berwicara".
Yogyakarta:
Kanisius,
1992,2004,2006.
Text.